ALTO Technical Metadata for Optical Character Recognition (OCR)

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ALTO News

Schema Version 3.0 released (version 2.2 renamed)

2014-08-25

Schema version 3.0 was released.

The new version of the schema, v3/alto.xsd, was released. Available here also as officially named: v3/alto-3-0.xsd.

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Schema Version 2.2 Draft Released

2014-07-08

Schema version 2.2 was released in draft form.

The new version of the schema, alto-2-2-draft.xsd, was released for a comment period of 30 days.

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Schema Version 2.1 Officially Released

2014-02-23

Schema version 2.1 was officially released.

Version 2.1 of the schema, alto.xsd, was released officially.

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Schema Version 2.1 Draft Released

2014-01-23

Schema version 2.1 was released in draft form.

The new version of the schema, alto-2-1-draft.xsd, was released for a comment period of 30 days.

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ALTO board face-to-face meeting

2013-11-03

The ALTO board met at DLF in Austin, TX.

The ALTO board met during a pre-conference of the DLF in Austin, Texas again. The main topic for the meeting was the finalization of the new ALTO version which is scheduled to be available in draft status mid of December 2013.

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ALTO Board Changes

2013-02-01

Clay Redding left the Library of Congress, replaced by Nate Trail. The management of the conference calls is done by Frederick Zarndt.

The ALTO Editorial Board now consists of:

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Stockholm ALTO Board meeting agenda

2009-08-11

The agenda for the August 18, 2009 face-to-face meeting of the ALTO Editorial Board has been finalized.

Download a PDF version [PDF: 25 KB, 3 pages] of the agenda.

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ALTO Editorial Board established

2009-08-11

The ALTO XML Standard now has an editorial board to help shape and advocate usage of the standard.

The following individuals will serve on the ALTO Editorial Board:

The board will oversee maintenance of the ALTO XML Schema and help foster usage in the digital library community.

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Library of Congress becomes maintenance agency for ALTO XML Schema

2009-08-10

CCS Content Conversion Specialists GmbH transfers maintenance of ALTO XML Schema to the Library of Congress Network Development and MARC Standards Office.

The Library of Congress (LC) Network Development and MARC Standards Office has become the official maintenance agency for the ALTO (Analyzed Layout and Text Object) XML Schema. Prior to its arrival at LC, CCS Content Conversion Specialists GmbH External URL: http://www.ccs-gmbh.de/ maintained the ALTO standard. CCS has played a crucial role in ALTO's development dating back to its creation during the METAe project External URL: http://meta-e.aib.uni-linz.ac.at/.

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ALTO (Analyzed Layout and Text Object) is a XML Schema that details technical metadata for describing the layout and content of physical text resources, such as pages of a book or a newspaper. It most commonly serves as an extension schema used within the Metadata Encoding and Transmission Schema (METS) administrative metadata section. However, ALTO instances can also exist as a standalone document used independently of METS.